It is reported that saving energy, improving the quality of melting, and extending the service life of kiln are the constant targets explored by the foreign glass packaging industry. The oxy-fuel combustion technology that is being promoted in foreign glass packaging industry is the second revolution after the regenerative glass bottle furnace, which can achieve significant effects of low investment, low energy consumption, low NOx and powder emissions. Another way to save energy is to increase the amount of broken glass bottles. The amount of broken glass bottles imported abroad reaches 60%-70%. The ideal is to use 100% broken glass bottles to achieve the goal of "ecological" glass bottles production. In developed countries such as Europe, America and Japan, lightweight bottles are the leading products for glass bottles and bottles. 80% of glass bottles and bottles produced by Obe-dand, Germany, are lightweight disposable bottles. Precise control of raw material composition, precise control of the entire process of melting, NNPB, spraying of hot and cold ends of bottles and cans, on-line detection and other advanced technologies are fundamental guarantees for realizing the lightweight of bottles and cans. Some countries are developing new surface enhancement technology for bottle cans in an attempt to further reduce bottle weight. The company's Sea Leaf Company applied a thin layer of primary resin to the surface of the bottle wall to produce a one-liter concentrated juice bottle of only 295 grams, which can prevent glass bottle bottles from being scratched, thereby increasing the pressure strength of the bottle by 20%. The popular plastic film sleeve labels are also beneficial to the lightweighting of glass bottles and cans. How to increase the molding speed of glass bottles is the key to improving the labor productivity of glass bottle manufacturing. At present, the commonly adopted method in developed countries is to use a multi-group, multi-drop molding machine. The speed of 12 sets of double drip-flow bottle-making machines produced abroad can exceed 240 pcs/min, which is more than 4 times higher than that of single drip forming machines commonly used in China. In order to ensure high-speed quality and high molding pass rate, electronic timers are used to replace the traditional cam drums. The main movements adopt molding parameters. The servo drive can be optimized to replace the mechanical transmission that cannot be arbitrarily adjusted. The cold end online inspection system automatically rejects waste products. The entire production process is controlled by the computer in real time, which can ensure the best molding conditions, ensure high-quality products, run more stable and reliable, and have extremely low reject rate. Large kilns that match high-speed molding machines must have a lot of capacity to stably supply high-quality glass bottles. The temperature and viscosity of the gobs must meet the requirements of the best molding conditions. In order to adapt to the severe competition situation caused by the challenge of other new packaging products in the glass bottle packaging industry, a large number of glass bottle packaging manufacturers started mergers and reorganizations to increase the concentration of the glass bottle container industry in order to optimize resource allocation, increase economies of scale, and reduce the Order competition, enhance development capabilities, which has become the current trend of the world glass packaging industry.
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Large-scale glass packaging companies in various countries keep a close eye on the domestic market
With the continuous development of the packaging market and the increasing competition in the market, international large-scale glass packaging companies have been devoting themselves to making product quality more reliable and aesthetically pleasing in order to compete with new packaging material container packaging companies such as paper product container packaging companies and plastic bottles. The cost is lower and the price is cheaper. Recently, American O-I companies, Australian ACI companies, Hong Kong New World Group, French Saint-Gobain Group and other large international companies have flooded into China and established many joint ventures or wholly-owned glass bottle manufacturers. These international large-scale glass bottle packaging companies generally adopt advanced energy-saving technologies; lightweight bottles and bottles; improve labor productivity and increase production concentration.